Question: RUSH! Will upvote! A 75.0mL sample containing Fe3+ and Cu2+ required 28.45mL of 0.04186 M EDTA for complete titration. A 150.0mL sample of the unknown

RUSH! Will upvote!

A 75.0mL sample containing Fe3+ and Cu2+ required 28.45mL of 0.04186 M EDTA for complete titration. A 150.0mL sample of the unknown was treated with NH4F to protect Fe3+. Then Cu2+ was reduced and masked by thiourea. The addition of 35.0mL of 0.04186 M EDTA liberated Fe3+ from its fluoride complex to form the EDTA complex. The excess EDTA required 13.92mL of 0.02788 MPb2+ to reach the xylenol orange endpoint. Find the [Cu2+] in the unknown. 8.6987103MCu2+3.6877103MCu2+8.0286104MCu2+4.5581103MCu2+

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemical Engineering Questions!

A 25.00-mL sample containing Fe 3+ and Cu 2+ required 16.06 mL of 0.050 83 M EDTA for complete titration. A 50.00-mL sample of the unknown was treated with NH4F to protect the Fe 3+ . Then Cu21 was...

A 25.00-mL sample containing Fe3 [1] and Cu 2+ required 16.06 mL of 0.050 83 M EDTA for complete titration. A 50.00-mL sample of the unknown was treated with NH4F to protect the Fe 3+ . Then Cu 2+...

For Nos. 16-20. The K&S Company is a profitable medium-sized retail store specializing in 60s costumes and alternative music, run by Karina and Selena. The following transactions occurred during 2020...

RUSH! Will upvote! An EDTA solution prepared from its disodium salt was standardized using 1g of primary standard CaCO3(100.1g/mol) and consumed 28.50mL of the solution. The standard solution was...

RUSH! Will upvote! Consider the following scenario: Zn(s)Zn2+(0.45M)Cu2+(0.35M)Cu(s)Zn2+(aq)+2eZn(s)Eo=0.76VCu2+(aq)+2eCu(s)E=0.34V Calculate the thermodynamic potential of the following cell and the...

please answer all, will upvote you thanks hehe D. If the K. of Ca (PO.), is 2.0x102, how many grams of the compound will dissolve in 750mL of water? (mw Ca:(PO.)=310.2 g/mol). Show your calculations....

IS and SEquity please have it done neat with no cursive because I cant read cursive and make sure what ever is sent can be fully seen on my end and is done on the same format so no confusion happens...

Please only attempt if you can answer all parts!! Please need done asap, only have 2hrs. I will upvote! remember only attempt if you can answer all parts(: 4. The second (1997) Mars Pathfinder and...

please have it done neat, no cursive with the same format its given so no confusion happens and I can gladly give you an upvote!!! Please make sure what ever you send it fully shown on my end!! Thank...

post Close TB please have it done neat with no cursive because I cant read cursive and make sure what ever is sent can be fully seen on my end and is done on the same format so no confusion happens...

Andrew Company uses a standard cost system for its production process. Andrew Company applies overhead based on direct labor hours. The following information is available for July: Standard: Direct...

On 1 July 2019, John Ltd acquired all the issued shares of Wayne Ltd for $250,000. At this date, the financial statements of Wayne Ltd showed the following: Share capital Retained earnings General...

You have the following information on a debt issue for JNJ . These are corporate notes that are senior unsecured debt. The bonds are both AAA. Use March 1 0 , 2 0 2 5 as the settlement date. Use the...

Write a program that asks the user to enter a number of seconds. There are 86400 seconds in a day. If the number of seconds entered by the user is greater than or equal to 86400, the program should...

Create a corporate story for a company with which you are familiar.

Find examples of good corporate advertising.

Why is it important to distinguish between different types of advertising?